Can I use the ST-3/XT3 on a 5S installation?
Yes. In order to use the ST-3/XT3 on a 5S, 35S or 45S installation, you must use the 5S, 35S and 45S adapter which is included when you purchase a ST-3/XT3.
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How does the ST-3/XT3 work?
ST-3/XT3 : Transformer Rated Wireless Site Tester This unit is a socket type tester, that obtains the reading directly from the secondary of the current and potential transformers. It does not require any external load to perform tests and it is ...
How do I update the XT Series tester firmware?
To benefit from all the latest features and bug fixes, Probewell Lab suggests that firmware updates on XT Series testers be performed periodically. The XT Series 2.0.4 & WT Series 2.1.0 Firmware is always available. Watch Firmware Update Tutorial ...
Can I use it without accessories? How many accessories can I use it with?
Yes, it can work without any accessories, depending on the test you wish to perform on the site. The only test that it is not available without accessories would be the primary/secondary analysis (Ratio Test). The accessories available are 3 phases ...
What is the Secondary Burden test?
Secondary Burden test What is the Secondary Burden test? The Secondary Burden test is used to analyze the effect of a resistive burden on the behaviour of the CT. Within the ST-3/XT3 is an array of high accuracy resistors that can be, with the use of ...
What is the procedure when installing the tester?
The ST-3/XT3 is compatible with CT rated installations forms 3S, 4S, 6S, 8S and 9S, it is also compatible with installation forms 5S, 35S and 45S using the included adapter. Before testing a CT rated installation in the field, always make sure that ...